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Updated: May 3, 2026

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

Directional emission from a single plasmonic scatterer.

Toon Coenen¹, Felipe Bernal Arango¹, A Femius Koenderink¹

¹Center for Nanophotonics, FOM Institute AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands.

Nature Communications

|February 4, 2014

Summary

This summary is machine-generated.

Simple gold nanodisks can direct light emission through the interference of electric and magnetic modes. This research demonstrates strong light beaming from individual nanodisks, offering new possibilities for optical antenna design.

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Area of Science:

Nanophotonics
Plasmonics

Background:

Directing light emission is crucial for photonics and biology.
Designing directional optical antennas, especially multi-element ones, presents challenges.

Purpose of the Study:

To demonstrate directional light emission from a single gold nanodisk.
To investigate the role of resonant electric and magnetic modes in light directionality.

Main Methods:

Angle-resolved cathodoluminescence spectroscopy to analyze spectral and angular response.
Full-wave simulations and analytical point scattering theory to decompose scattered fields.

Main Results:

Strongly directional emission achieved from a single gold nanodisk.
Emission directionality depends on excitation position, with edge excitation yielding strong beaming.
Higher-order multipole components enhance directionality in larger nanodisks.

Conclusions:

Individual gold nanodisks can function as effective directional optical antennas.
Far-field interference of resonant modes is key to achieving controlled light emission.
Decomposition into dipolar and quadrupolar contributions aids in understanding scattering behavior.